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25-03-2023 14:42

Edvin Johannesen Edvin Johannesen

I have received this dried specimen for microscopy

29-03-2023 13:05

Georges Greiff

Bonsoir,I would like to please request the followi

28-03-2023 19:16

Enrique Rubio Enrique Rubio

J'aimerais connaître la revision de Van Vooren su

28-03-2023 01:34

Stefan Jakobsson

On wood of a still fairly hard trunk of spruce I f

28-03-2023 11:04

Margot en Geert Vullings

Found this Lichenoptella (Trichothyrina) on Juncus

27-03-2023 00:36

Juuso Äikäs

A finding from last fall: a plentiful amount of lo

17-11-2014 15:55

Salvador Tello

Hola a todos.Tengo este hongo que he cogido crecie

24-03-2023 16:08

Bernard Declercq Bernard Declercq

Hello,A friend of mine collected galls with pynidi

24-03-2023 12:53

Riet van Oosten Riet van Oosten

Hello, Saw this strange ascus Schizoxylon composi

25-03-2023 09:04

Bernard Declercq Bernard Declercq

Hello,I am looking for following paper:Motohashi K

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Dark ones on Pimus cone
Marja Pennanen, 26-01-2023 15:23
Hello forum.

I collected some dark ones on Pinus cones last spring in Sodankylä,  Lappland.

Now I finally studied them. They are now, when dry about 0,2-0,5 mm wide.

The spores are about 8-10x 3-4 and develop up to 3 septas.

The asci are about 40x6, IKI-.

I have absolutely no idea of, what these may be.

Hopefully someone here knows more about northern species: Marja

  • message #75007
  • message #75007
Hans-Otto Baral, 26-01-2023 16:51
Hans-Otto Baral
Re : Dark ones on Pimus cone
Hallo Marja!

Should be ostropalean. You can compare Odontotrema (O. minus). I found the spores larger, 11-13 x 5-6, 3-septate, eguttulate. Also Sherwood says 10-14 x 4-4.5 when dead.

But the hymenium should show some IKI-reaction.

Asci have an apical thickening when dead and paraphyses are multiseptate, uninflated, and a little granular around the tips.

Marja Pennanen, 26-01-2023 17:27
Re : Dark ones on Pimus cone
Thank you Zotto!

I just took a fast look at the fungus, so the measurements are few and not very accurate. I do not like dry specimen, they are not easy to handle.  But could not take a microscope with me, when I went to Lapland.

This looks like, what I quickly found from Odontotrema.

Greetings to your family, too: Marja
Hans-Otto Baral, 26-01-2023 17:40
Hans-Otto Baral
Re : Dark ones on Pimus cone
If not too old it can be that the fungus is still alive. Ostropales are generally drought-tolerant. Rehydrate and it is like fresh.